Systems and process for controlling a sulfur extraction from a hydrocarbon stream

• Main Authors: Lehuta, Keith, Shi, Yili, Trucko, Jessy E
• Format: Patent
• Language: English
• Published: 13.02.2024
• Subjects: CHEMISTRY; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; CRACKING HYDROCARBON OILS; FUELS; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; LUBRICANTS; METALLURGY; MINERAL WAXES; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; REGULATING; TECHNICAL GASES CONTAINING CARBON MONOXIDE

Systems and processes for removing sulfur compounds from a hydrocarbon stream. Sulfur compounds are extracted from a hydrocarbon feed stream with a caustic stream to provide a treated hydrocarbon stream and a rich caustic stream. The sulfur compounds in the rich caustic stream are oxidized in the presence of a catalyst to provide a lean caustic stream. The lean caustic stream is returned to extract sulfur from the hydrocarbon stream. Data such as a concentration of sulfurs species and degree of caustic saturation with the sulfur species in the rich caustic stream may be provided by a sensor, compared against other real-time or historical data and used to provide a recommended adjustment to process conditions associated with an extraction unit, or an oxidation unit, or both.